207 	struct extent_node *en;  in __attach_extent_node()  local
209 	en = kmem_cache_alloc(extent_node_slab, GFP_ATOMIC);  in __attach_extent_node()
210 	if (!en)  in __attach_extent_node()
213 	en->ei = *ei;  in __attach_extent_node()
214 	INIT_LIST_HEAD(&en->list);  in __attach_extent_node()
215 	en->et = et;  in __attach_extent_node()
217 	rb_link_node(&en->rb_node, parent, p);  in __attach_extent_node()
218 	rb_insert_color_cached(&en->rb_node, &et->root, leftmost);  in __attach_extent_node()
221 	return en;  in __attach_extent_node()
225 				struct extent_tree *et, struct extent_node *en)  in __detach_extent_node()  argument
227 	rb_erase_cached(&en->rb_node, &et->root);  in __detach_extent_node()
231 	if (et->cached_en == en)  in __detach_extent_node()
233 	kmem_cache_free(extent_node_slab, en);  in __detach_extent_node()
243 			struct extent_tree *et, struct extent_node *en)  in __release_extent_node()  argument
246 	f2fs_bug_on(sbi, list_empty(&en->list));  in __release_extent_node()
247 	list_del_init(&en->list);  in __release_extent_node()
250 	__detach_extent_node(sbi, et, en);  in __release_extent_node()
288 	struct extent_node *en;  in __init_extent_tree()  local
290 	en = __attach_extent_node(sbi, et, ei, NULL, p, true);  in __init_extent_tree()
291 	if (!en)  in __init_extent_tree()
294 	et->largest = en->ei;  in __init_extent_tree()
295 	et->cached_en = en;  in __init_extent_tree()
296 	return en;  in __init_extent_tree()
303 	struct extent_node *en;  in __free_extent_tree()  local
309 		en = rb_entry(node, struct extent_node, rb_node);  in __free_extent_tree()
310 		__release_extent_node(sbi, et, en);  in __free_extent_tree()
332 	struct extent_node *en;  in __f2fs_init_extent_tree()  local
355 	en = __init_extent_tree(sbi, et, &ei);  in __f2fs_init_extent_tree()
356 	if (en) {  in __f2fs_init_extent_tree()
358 		list_add_tail(&en->list, &sbi->extent_list);  in __f2fs_init_extent_tree()
381 	struct extent_node *en;  in f2fs_lookup_extent_tree()  local
398 	en = (struct extent_node *)f2fs_lookup_rb_tree(&et->root,  in f2fs_lookup_extent_tree()
400 	if (!en)  in f2fs_lookup_extent_tree()
403 	if (en == et->cached_en)  in f2fs_lookup_extent_tree()
408 	*ei = en->ei;  in f2fs_lookup_extent_tree()
410 	if (!list_empty(&en->list)) {  in f2fs_lookup_extent_tree()
411 		list_move_tail(&en->list, &sbi->extent_list);  in f2fs_lookup_extent_tree()
412 		et->cached_en = en;  in f2fs_lookup_extent_tree()
429 	struct extent_node *en = NULL;  in __try_merge_extent_node()  local
434 		en = prev_ex;  in __try_merge_extent_node()
441 		if (en)  in __try_merge_extent_node()
444 		en = next_ex;  in __try_merge_extent_node()
447 	if (!en)  in __try_merge_extent_node()
450 	__try_update_largest_extent(et, en);  in __try_merge_extent_node()
453 	if (!list_empty(&en->list)) {  in __try_merge_extent_node()
454 		list_move_tail(&en->list, &sbi->extent_list);  in __try_merge_extent_node()
455 		et->cached_en = en;  in __try_merge_extent_node()
458 	return en;  in __try_merge_extent_node()
469 	struct extent_node *en = NULL;  in __insert_extent_tree()  local
482 	en = __attach_extent_node(sbi, et, ei, parent, p, leftmost);  in __insert_extent_tree()
483 	if (!en)  in __insert_extent_tree()
486 	__try_update_largest_extent(et, en);  in __insert_extent_tree()
490 	list_add_tail(&en->list, &sbi->extent_list);  in __insert_extent_tree()
491 	et->cached_en = en;  in __insert_extent_tree()
493 	return en;  in __insert_extent_tree()
501 	struct extent_node *en = NULL, *en1 = NULL;  in f2fs_update_extent_tree_range()  local
532 	en = (struct extent_node *)f2fs_lookup_rb_tree_ret(&et->root,  in f2fs_update_extent_tree_range()
538 	if (!en)  in f2fs_update_extent_tree_range()
539 		en = next_en;  in f2fs_update_extent_tree_range()
542 	while (en && en->ei.fofs < end) {  in f2fs_update_extent_tree_range()
548 		dei = en->ei;  in f2fs_update_extent_tree_range()
553 			en->ei.len = pos - en->ei.fofs;  in f2fs_update_extent_tree_range()
554 			prev_en = en;  in f2fs_update_extent_tree_range()
567 				en->ei.fofs = end;  in f2fs_update_extent_tree_range()
568 				en->ei.blk += end - dei.fofs;  in f2fs_update_extent_tree_range()
569 				en->ei.len -= end - dei.fofs;  in f2fs_update_extent_tree_range()
570 				next_en = en;  in f2fs_update_extent_tree_range()
576 			struct rb_node *node = rb_next(&en->rb_node);  in f2fs_update_extent_tree_range()
583 			__try_update_largest_extent(et, en);  in f2fs_update_extent_tree_range()
585 			__release_extent_node(sbi, et, en);  in f2fs_update_extent_tree_range()
596 		en = next_en;  in f2fs_update_extent_tree_range()
634 	struct extent_node *en;  in f2fs_shrink_extent_tree()  local
679 		en = list_first_entry(&sbi->extent_list,  in f2fs_shrink_extent_tree()
681 		et = en->et;  in f2fs_shrink_extent_tree()
684 			list_move_tail(&en->list, &sbi->extent_list);  in f2fs_shrink_extent_tree()
688 		list_del_init(&en->list);  in f2fs_shrink_extent_tree()
691 		__detach_extent_node(sbi, et, en);  in f2fs_shrink_extent_tree()